Frequencies for first 10,000 rows of ownsmg variable in nhamcsed1999 dataset : hospital ownership | Freq. Percent Cum. ------------------------+----------------------------------- Voluntary non-profit | 7,615 76.15 76.15 Government, non-Federal | 2,125 21.25 97.40 Proprietary | 260 2.60 100.00 ------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016